bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:bd:5f:0c:72:11, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10915/1:b..l rcu: (detected by 0, t=10503 jiffies, g=463021, q=1022 ncpus=2) task:syz-executor state:R running task stack:21592 pid:10915 tgid:10915 ppid:1 task_flags:0x40054c flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5248 [inline] __schedule+0x14bc/0x5000 kernel/sched/core.c:6855 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7182 irqentry_exit+0x5d8/0x660 kernel/entry/common.c:216 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_acquire+0x16c/0x340 kernel/locking/lockdep.c:5872 Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 d4 e6 d7 10 <48> 3b 44 24 58 0f 85 e5 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9000aee7098 EFLAGS: 00000206 RAX: 5594d00b8b89e900 RBX: 0000000000000000 RCX: 5594d00b8b89e900 RDX: 00000000a5903b6b RSI: ffffffff8d94e272 RDI: ffffffff8bbfc3e0 RBP: ffffffff8173ef25 R08: ffffffff8173ef25 R09: ffffffff8df41d40 R10: ffffc9000aee7258 R11: ffffffff81ad20e0 R12: 0000000000000002 R13: ffffffff8df41d40 R14: 0000000000000000 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] class_rcu_constructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:56 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:77 __kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:587 kasan_save_free_info mm/kasan/kasan.h:406 [inline] poison_slab_object mm/kasan/common.c:252 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:284 kasan_slab_free include/linux/kasan.h:234 [inline] slab_free_hook mm/slub.c:2543 [inline] slab_free mm/slub.c:6642 [inline] kmem_cache_free+0x192/0x670 mm/slub.c:6752 anon_vma_chain_free mm/rmap.c:146 [inline] unlink_anon_vmas+0x2cc/0x670 mm/rmap.c:420 free_pgtables+0x72b/0x9c0 mm/memory.c:414 exit_mmap+0x437/0xb20 mm/mmap.c:1291 __mmput+0x118/0x430 kernel/fork.c:1131 exit_mm+0x1da/0x2c0 kernel/exit.c:583 do_exit+0x658/0x2310 kernel/exit.c:961 do_group_exit+0x21c/0x2d0 kernel/exit.c:1114 get_signal+0x1285/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2e3/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f63205c2005 RSP: 002b:00007f632090fd40 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: 0000000000000000 RBX: 0000000000000576 RCX: 00007f63205c2005 RDX: 00007f632090fd80 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f632090fdec R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000001bd R13: 0000000000000064 R14: 000000000033f2c9 R15: 00007f632090fe40 bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:bd:5f:0c:72:11, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:bd:5f:0c:72:11, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:bd:5f:0c:72:11, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:bd:5f:0c:72:11, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:bd:5f:0c:72:11, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:bd:5f:0c:72:11, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:bd:5f:0c:72:11, vlan:0)